简答题The housekeeping department and engineering department are the two departments with the most business relations and the closest relationship.简答题Which hotel has introduced a concept called “Raid The Pantry” in properties that lack twenty-four–hour room service? A、Marriott B、Four Seasons C、Hilton D、Hyatt多选题What range should the shortage rate of warehouses not exceed？ A、10% B、15% C、5% D、1%多选题What kind of service is also called family service and is mainly suitable for private banquets？ A、Russian service B、British service C、American service D、French service简答题VIS, known as hotel behavior recognition system.